From transcendent Star Trek holosuites to mind-blowing Minority Report graphics, our vision for computers has enticed and intrigued us for decades, but ultimately the reality has fallen short. But with the Leap Motion controller, 3D gesture control has finally made out of the lab and into real life. Typing? Seriously? That's fine for writing a novel. But it's hardly the most natural, intuitive way to communicate. The ability to control any application with nuanced hand and finger movements is already transforming the way we interact with computers. And we're just getting started.